On 2019/4/16 14:43, Park Ju Hyung wrote:
> Following extensions are removed:
> - divx: deprecated video format and it's usually wrapped with avi
> - asf: deprecated streaming format
> - asx: redirecting file to asf(small)
> - wmx: redirecting file to wma/wmv(small)
> - rm: deprecated media container
> - video: unused
> - wv: unpopular audio format from 1998
>
> The extensions list is limited to 64 and those don't deserve to be
> on this space-precious list.
>
> Common prefixes are introduced and are checked with
> https://en.wikipedia.org/wiki/List_of_filename_extensions
> to avoid treating possible hot files as cold:
> - mp: covers mp3, mp4, mpeg, mpg
> - wm: covers wma, wmb, wmv
> - og: covers oga, ogg, ogm, ogv
> - jp: covers jpg, jpeg, jp2
>
> Following extensions are added:
> - webm: extremely popular free media container format from Google
> VP8/VP9/AV1 and Vorbis/Opus is often wrapped with this container
> - wav: uncompressed audio format, commonly used with voice recorders
> - svg: vector image format commonly used in web
> - webp: free lossy image format commonly used in web
> - jar: Java archive file
> - deb: Debian software package
> - iso: disk image file
> - gz: gzip compressed file, unable to randomly update
> - xz: xz compressed file, unable to randomly update
> - zst: zstd compressed file, unable to randomly update
> - pdf: PDF document
> - pyc: Python bytecode automatically generated when
> executing python to run .py files
> - ttc, ttf: font files
> - cnt: image alias files commonly used in Android apps
> - exo: EXO player's cache files, commonly used in Android's YouTube app
> - odex, vdex: Android RunTime files found in /data/app/*/oat
>
> Total entries on the list changed from 34 to 36.
>
> Signed-off-by: Park Ju Hyung <[email protected]>
> ---
> mkfs/f2fs_format.c | 50 ++++++++++++++++++++++++++--------------------
> 1 file changed, 28 insertions(+), 22 deletions(-)
>
> diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
> index 0ae0df3..4560611 100644
> --- a/mkfs/f2fs_format.c
> +++ b/mkfs/f2fs_format.c
> @@ -38,48 +38,54 @@ struct f2fs_checkpoint *cp;
> static unsigned int quotatype_bits = 0;
>
> const char *media_ext_lists[] = {
> + /* common prefix */
> + "mp", // Covers mp3, mp4, mpeg, mpg
> + "wm", // Covers wma, wmb, wmv
> + "og", // Covers oga, ogg, ogm, ogv
> + "jp", // Covers jpg, jpeg, jp2
> +
> /* video */
> "avi",
> - "divx",
> "m4v",
> "m4p",
> - "mp4",
> - "wmv",
> - "mpeg",
> "mkv",
> "mov",
> - "asx",
> - "asf",
> - "wmx",
> - "svi",
> - "wvx",
> - "wm",
> - "mpg",
> - "mpe",
> - "rm",
> - "video",
> + "webm",
>
> /* audio */
> + "wav",
> "m4a",
> - "mp3",
> "3gp",
> - "wma",
> - "wv",
> - "ogg",
> "opus",
> "flac",
>
> /* image */
> - "jpeg",
> - "jpg",
> "gif",
> "png",
> -
> - /* other */
> + "svg",
> + "webp",
> +
> + /* archives */
> + "jar",
> + "deb",
> + "iso",
> + "gz",
> + "xz",
> + "zst",
How about adding below extensions:
"zip",
"bin",
"dat",
"txt",
Thanks,
> +
> + /* others */
> + "pdf",
> + "pyc", // Python bytecode
> + "ttc",
> + "ttf",
> "exe",
>
> /* android */
> "apk",
> + "cnt", // Image alias
> + "exo", // YouTube
> + "odex", // Android RunTime
> + "vdex", // Android RunTime
> "so",
>
> NULL
>
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